Google search console only reads 1 sitemap file in the sitemap index and ignores the rest?
My website has a sitemap index, which contains URLs to hundreds of sitemap files. And each sitemap file contains URLs to pages in my website. So for instance
Index: /sitemap/sitemap-index.xml
sitemap:
- /sitemap/products-1.xml (contains thousands of URL)
- /sitemap/products-2.xml (contains thousands of URL)
When I submit the sitemap index file into GSC, it is able to read it. But when I click on the record, turns out it only read 1 sitemap, which is the first entry in the sitemap index (which is products-1.xml). Thus it only discovers the URLs inside products-1.xml, while the rest of URLs inside other sitemaps are not discovered.
Im not sure whether anyone experiences this issue? How to fix it? Is GSC buggy?